Valve Spring
WARNING: This page is about a different variant/trim than selected.
- Check the valve springs for damage, free length (reference), and tension. Replace the valve spring if it is not within the standard value presented in the table.NOTE:
- Measurement should be performed at a temperature of 20°C (68°F).
- The free length of the valve spring is described as a reference. There is no need to replace the valve spring if the free length of the valve spring alone is out of standard.
- To measure the squareness of the valve spring, stand the valve spring on a surface plate and measure its deflection at the top of the valve spring using a try square.
Free length (reference) mm (in) 53.48 (2.1055) Tension/spring height N (kgf, lbf)/mm (in) Set 204.6 - 235.4 (20.86 - 24.00, 46.00 - 52.93)/36.0 (1.4173) Lift 363.5 - 401.7 (37.07 - 40.96, 81.73 - 90.32)/26.7 (1.0512) Squareness 2.5°, 2.3 mm (0.0906 in) or less